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SAA-C03 · Question #339

A company hosts a web application in a VPC on AWS. A public Application Load Balancer (ALB) forwards connections from the internet to an Auto Scaling group of Amazon EC2 instances. The Auto Scaling gr

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Submitted by weili_xi· Mar 4, 2026Design Cost-Optimized Architectures

Question

A company hosts a web application in a VPC on AWS. A public Application Load Balancer (ALB) forwards connections from the internet to an Auto Scaling group of Amazon EC2 instances. The Auto Scaling group runs in private subnets across four Availability Zones. The company stores data in an Amazon S3 bucket in the same Region. The EC2 instances use NAT gateways in each Availability Zone for outbound internet connectivity. The company wants to optimize costs for its AWS architecture. Which solution will meet this requirement?

Options

  • AReconfigure the Auto Scaling group and the ALB to use two Availability Zones instead of four. Do
  • BCreate a new, smaller VPC that still has sufficient IP address availability to run the application.
  • CDeploy an S3 gateway endpoint to the VPC. Configure the EC2 instances to access the S3
  • DDeploy an S3 interface endpoint to the VPC. Configure the EC2 instances to access the S3

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